Kirill Chilikin
(ITEP, MEPhI)
06/10/2015, 15:00
Nuclear physics and particle physics
Recent results on charged charmoniumlike states at Belle are presented.
A full amplitude analysis of $\bar{B}^0 \to \psi(2S) K^- \pi^+$ decays,
with $\psi(2S)\to\mu^+\mu^-\text{ or }e^+e^-$, was performed to constrain the
spin and parity of the $Z_c(4430)^+$. The $J^P=1^+$ hypothesis is
favored over the $0^-$, $1^-$, $2^-$ and $2^+$ hypotheses at the levels
of $3.4\sigma$, $3.7\sigma$,...
Dr.
Ruslan Chistov
(ITEP, MEPhI)
06/10/2015, 15:15
Nuclear physics and particle physics
In this talk the decays of B-mesons into baryons will be discussed. Large mass of B-meson makes possible the decays of the type B-->baryon anti-baryon (+mesons). Experimental observations and measurements of these decays at B-factories Belle and BaBar have stimulate the development of theoretical models in this field. So we overview the experimental results together with the current...
Dr.
Ruslan Chistov
(ITEP, MEPhI)
06/10/2015, 15:30
Nuclear physics and particle physics
B-factories Belle and BaBar during its operation made not only measurements connected with B-meson decays but also numerous observation and measurements in charm physics. In particular, their results on charm baryon decays and spectroscopy have enlarged and enriched the current picture of heavy flavour hadrons. In this talk we overview current status of charm baryons and their excited states....
Dr.
Timofey Uglov
(MEPhI)
06/10/2015, 15:40
Nuclear physics and particle physics
A possible interpretation of charged charmonium-line state
Z+(4430) as purely kinematical effect is discussed. This
approach allows to avoid exotic states introduction to the theory.
Structures in Psi(2S)pi+ mass spectrum are described by
existence of Ds(*)' resonance as hidden intermediate state.
Models predictions are compared to the LHCb results.
Dr.
Alexey Nefediev
(Institute of Theoretical and Experimental Physics)
06/10/2015, 15:55
Nuclear physics and particle physics
The role of pion dynamics in the X(3872) charmonium-like state is studied in the framework of a
renormalisable effective quantum field theory approach and they are found to play a substantial role in the formation of the X. Chiral extrapolation from the physical point to unphysically large pion masses is performed and the results are confronted with the lattice predictions. The proposed...
Dr.
Alexey Nefediev
(ITEP, MEPhI, MIPT)
06/10/2015, 16:10
Nuclear physics and particle physics
A practical parametrisation for the line shapes of near threshold resonance(s) is derived in the framework of a coupled-channel model which includes an arbitrary number of elastic and inelastic channels as well as a bare pole term. The parameters have a direct relation to phenomenology and can be employed to study the nature of the near-threshold states. The resulting analytical...
Prof.
Alexey Drutskoy
(MEPhI, ITEP)
06/10/2015, 16:25
Nuclear physics and particle physics
The physics case for the international linear collider (ILC) project is discussed in this talk. The project is proposed to be built in Japan and a final decision has to be taken in 2016 on the government level. The initial data taking with e+e- beams is planned at the center-of-mass energy of 500 GeV with following runs at 250 GeV and 350 GeV. Potential physics studies at ILC are discussed...
